Duplex 2205 is a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most widely used duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades. It also demonstrates good fatigue strength, as well as outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion in severe environments.
Chemical CompositionChemical Composition(%)CMnSiCrNiPSMoN-Max 0.03Max 2.0Max 1.021.0-23.04.5-6.5Max 0.03Max 0.0152.9-3.50.14-0.2-
Mechanical properties of 2205 grade stainless steels
GradeTensile Str
(MPa) minYield Strength
0.2% Proof
(MPa) minElongation
(% in 50mm) minHardnessRockwell C (HR C)Brinell (HB)22056214482531 max293 max
Applications:Chemical processing, transport and storage - pressure vessels, tanks, piping, and heat exchangers
Oil and gas exploration and processing equipment - piping, tubing, and heat exchangers
Marine and other high chloride environments
Effluent scrubbing systems
Pulp and paper industry - digesters, bleaching equipment, and stock-handling systems
Cargo tanks for ships and trucks
Food processing equipment
Biofuels plantsContact Shanghai Jingteng metal products Co., Ltd with your enquiries
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